Low clinker slag Portland cement of increased activity

Author(s): L. Dvorkin, V. Zhitkovsky, Y. Stepasyuk, M. Sonebi
Paper category: Proceedings
Book title: 3rd International Conference on Bio-Based Building Materials ICBBM 2019
Editor(s): Mohammed Sonebi and Sofiane Amziane
ISBN:
e-ISBN: 978-2-35158-229-9
Publisher: RILEM Publications SARL
Publication year: 2019
Pages: 120-126
Total Pages: 07
Language: English

Abstract: The article presents the results of study on effective ways to improve the strength of Low clinker slag Portland cement (LCSPC) with having a clinker content of 5-19% with complex sulfate-alkaline and sulfate-alkaline-fluoride activation of slags. The increase of specific surface area of LCSPC led to a significant improvement of the strength and two stage grinding was very effective on increase of grain size of clinkers. The addition of additives such as sodium silicofluoride Na2SiF6 , Fe2 (SO4)3, and MgSO4 were investigated and results show that Na2SiF6 was effective to improve the strength. The influence of complex sulfate-fluoride and sulfate-fluoride-alkaline activation is investigated. The results obtained shown that a complex sulfate-fluoride-alkaline activation of LCSPC increased significantly the strength of LCSPC by increasing the pH from 10 to 12-13.

Online publication: 2019
Publication type : full_text
Public price (Euros): 0.00